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3 years ago

So molecules are too big to pass through the phospholipid bilateral of the cell membrane these molecules need to pass through

1 answer:

8 0

These molecules require the help of specific transport proteins which are embedded in the phospholipid bilayer. Transport may occur through facilitated transport or active transport.

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What is life, explain in you own words

andreyandreev [35.5K]

Answer:

well life is,

Explanation:

Life is the aspect of existence that processes, acts, reacts, evaluates, and evolves through growth (reproduction and metabolism). The crucial difference between life and non-life (or non-living things) is that life uses energy for physical and conscious development.

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3 years ago

Read 2 more answers

Which is an example of the electromagnetic force?

hichkok12 [17]

Anything containing <span> electricity </span> or magnetism. For example would be drinking water because that is the result of the electromagnetic force holding those hydrogen and oxygen atoms together.

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3 years ago

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bacteria culture starts with 400 bacteria and grows at a rate proportional to its size. After 4 hours, there are 9000 bacteria.

yawa3891 [41]

Answer:

A) $P = P_0 e^{rt}$

B) $19564$

C) $5.5$ or $6$ hours

Explanation:

A) The formula that can be used for bacteria after "t" hours is

$P = P_0 e^{rt}$

Where ,

$P$ represents the population after "t" hours

$P_0$ represents the initial population.

$r$ represents the rate of growth of population

$t$ represents the time taken by the population to grow

B) Here let us first find the rate of population growth.

$9000 = 400 * e^{r*4}\\3.11 = r* 4\\r = 0.778$

Thus, the population of bacteria after 5 hours

$P = 400 * e^{0.778 * 5} \\P = 400* 48.91\\P = 19564\\$

$30000 = 400 * e^{0.778 * t) \\\\4.317 = 0.778 * t\\t = 5.549\\or t= 5.5 or 6$

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4 years ago

Exchange of gases in plants occur through:

yuradex [85]

Answer:

(A): through the stomata

4 0

3 years ago

What goes where? I have no clue

mariarad [96]

The first one is atoms cause they are all the same type of particles. The blue one is the molecules that is not compound cause they aren't connected to each other. The other two are compound cause two atoms of two different elements are bonded together.

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3 years ago